1)How are electrical signals and electromagnetic waves related? -They are not related -The current produced by an electrical signal traveling through a conductive wire creates an electromagnetic field -Electrical signals produce acoustic energy which travels through air in the form of an electromagnetic wave -None of the above describe how the two are related

Select the correct statement regarding modulation/demodulation.

2)Select the correct statement regarding modulation/demodulation. -the passband signal is combined with the carrier wave to produce a baseband which operates at a higher frequency

-the carrier signal is combined with the passband wave to produce a baseband which operates at a higher frequency -the passband signal is combined with the baseband wave to produce a carrier which operates at a higher frequency -the baseband signal is combined with the carrier wave to produce a passband which operates at a higher frequency

3)How are electrical signals and electromagnetic waves related? They are not related

The current produced by an electrical signal traveling through a conductive wire creates an electromagnetic field

Electrical signals produce acoustic energy which travels through air in the form of an electromagnetic wave

None of the above describe how the two are related

4)

Which OSI Reference Model layer is responsible for end-to-end connectivity over disparate common networks? Physical Layer 1 Data Link Layer 2 Network Layer 3

Transport Layer 4